This is North Korea’s fourth GPS interference since 2010. The interference affected approximately 1,000 civilian aircraft and Korean military drones. According to statistics, the last time the GPS car navigation system in Seoul was interfered in 2012.
South Korean officials emphasized that the attack did not cause serious GPS interference because the aircraft can also use the old inertial navigation system (INS). INS does not depend on external signals and is anti-card.
North Korea has developed a GPS jamming function that can handle GPS-guided weapons that South Korea and the US military can use in wars. The country has a global positioning system (OTC) near the capital of Pyongyang and refugee camps near the demilitarized zone. Jamming was prosecuted in 2012, demanding that the city be opened at the border.
According to reports, North Korea purchased a 30 to 60-mile car GPS jammer from Russia, and it was reported that the jammer worked in a longer-range jammer in 2011. Sixty miles outside of Seoul is half the population of Seoul.
Countries have different reactions to this GPS interference.
The British General Lighthouse (GLA) continues to use seven new Roland electronic stations. GLA engineer Martin Bransby said that this will replace visual navigation and become a good backup for GPS. It will be put into use in mid-2014 and will cost less than 700,000 pounds; the receiver will cost 2,000 pounds per ship. By 2019, the coverage will cover all major ports in the UK.
The US military research organization DARPA has an experimental "single-chip timing and inertial measurement unit" (TIMU). According to project owner Andrei Shkel (Andrei Shkel), when completed, it will use small gyroscopes and accelerometers to track its position without the need for satellites or radio towers. The US "White Sands" missile system in New Mexico has installed a "non-GPS-based positioning system" that uses ground antennas to provide centimeter-level positioning over 2,500 square miles. In May, the Canadian government stated that it would have an impact on the anti-jamming upgrade of military aircraft.
A new type of U.S. Air Force bunker bomb is designed to partially destroy Iran’s nuclear power plant and includes technology to prevent defenders from blocking its satellite navigation system. MBDA is a European missile company engaged in similar work.
But for many users, GPS and other space-based navigation systems (including Russia's GLONASS, some complete Beidou projects in China and the EU's unfinished projects) are still essential and ubiquitous. They are also very fragile. For those whose lives or lives depend on where they are, more flexible alternatives may not be fast enough.